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Automated quality control of brain MR images

✍ Scribed by Elias L. Gedamu; D.L. Collins; Douglas L. Arnold

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
768 KB
Volume
28
Category
Article
ISSN
1053-1807

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Purpose

To present a novel fully automated method for assessing the quality of magnetic resonance imaging (MRI) data acquired in a clinical trials environment.

Materials and Methods

This work was performed in the context of clinical trials for multiple sclerosis. Quality control (QC) procedures included were: (i) patient brain identity verification, (ii) alphanumeric parameter matching, (iii) signal‐to‐noise ratio estimation, (iv) gadolinium‐enhancement verification, and (v) detection of ghosting due to head motion. Each QC procedure produces a quantitative measurement which is compared against an acceptance threshold that was determined based on receiver operating characteristic analysis of traditional manual and visual QC performed by trained experts.

Results

The automated QC results have high sensitivity and specificity when compared with the visual QC.

Conclusion

Our automated objective QC procedure can replace many manual subjective procedures to provide increased data throughput while reducing reader variability. J. Magn. Reson. Imaging 2008;28:308–319. © 2008 Wiley‐Liss, Inc.

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